Book/Report

FZJ-2017-02352

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png $^{\alpha}$-Zählung von Plutonium-Isotopen mit Flüssig-Szintillatoren : Vermeidung von Fehlern, die von einer Wandadsorption des Plutoniums herrühren

Ihle, H.FZJ* ; Murrenhoff, A.FZJ* ; Aulich, H.FZJ*

1963
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/14005

Report No.: Juel-0127-PC

Abstract: Tri-n-octylphosphineoxide (TOPO) has been found to be a suitabl non-quenching complexing agent for application to internal liquid scintillation of Pu eliminating the errors due to chemical wall-adsorption of hydrolized species of Pu-ions. The excellent light yield and transmission properties of the (Dioxan + PPO + POPOP + Naphtalene + TOPO) liquid scintillator allow the use of conventional counting equipment as normally used with ZnS and NaJ scintillation crystals. With such equipment counting plateaus with a slope of less than 0.1 % per 100 V over the best range are readily obtained. With low noise equipment excellent precision for absolute alpha-counting can be achieved. The scintillator mixes with samples of aqueous Pu-solutions containing considerable quantities of salts and with samples of organic Pu-solutions containing organic complexing agents of low volatility. Both these types of samples cause difficulti for counting plate techniques due to self-absorption. The liqui scintillation method described is therefore especially favourable in the analytical evaluation of solvent extraction experiments.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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